Lock for handles.



F. E. CASE.

LOOK FOR HANDLES.

APPLICATION FILED 050.5, 1913..

Patented Aug. 14,1917.

6, m 9 o n m m e t v t n I. m a 5 .T F H Witnesses:

FRANK E. cast], or

me swims PATENT OFFICE.

scnEnEcr DY, new Yomgassrenon 'IO GENERAL ECTRIC COMPANY, A CORPORATION-OF NEW .yonK.

fLocKron HANDLES.

To all whom it may concern:-

Beit known that I, FRANKTE'. CASE, a

citizen of the United States, residing at Schenectady, in the county of Schenectady, State of New York, have invented certain new and useful Improvements in Looks for Handles, of which the following is a specification. I

My invention has referenceto a handle for controllers and the like, and more particu-J larly to means for'locking a controller handle to the controller shaft, although it will be obvious that; my invention is not limited to such use, and it has for its object the pro vision of a simple and efficient device of this character.

For a fuller understanding of invention, reference maybe had to the accompanying drawing, in which Figure l is a side elevation of the controller handle partially broken away and showing the top of the controller casing in section, and Fig. 2 is a transverse section of the hub of the baildle in which the controller shaft is received.

In the drawings, 1 is the handle which I have here shown as a controller handle provided with a hub 2 having a socket 2 preferably oblong in transverse section, as shown in Fig. 2, within which a shaft 3 may be received. In the embodiment of my invention here shown, one of the inner end walls of the socket is inclined at 4. A wedge 5 is adapted to be received in the socket between the inclined wall 4 and the shaft 3. A spring 6, mounted on the handle, engages a transverse slot 7 in wedge 5 and is biased to force the wedge home into position be} tween the inclined wall and the shaft in order to securely lock the handle to the same. The wedge is provided on either side with slots or grooves 8 within which are received the inner ends of screws 9 which pass through the hub of the handle and which keep the wedge in position within the slot. when the handle is removed from the controller shaft. The upper end of the wedge 5 is provided with a notch or opening 10 above which is a lug or projection which of the spring will engage the transverse slot 7.. The screws 9, 9 are thenplaced in posi Now, when'the hub of the handle is forced Specification of Letters Patent. I Patented Aug, 14, 1917. v

Application filed December 5,1913. sermi ito.1304,8459 i tion to' engage the slots 8, 8 in order to keep the wedge in position within-the socket 2- down over the shaft the friction between the wedge and-the parts engaged thereby slightly, elevates thewedgerelatively to the socket, so' that the handle is readily brought to its final position. When in this position, 'the spring forces the wedge intolocking po sition between the wall of the socket andthe will be apparent that any lost motion, such as would tend to result from the intermittent movement of the handle, will be taken up by f the wedge, and that such intermittent movement will only cause the spring to gradually force the wedge into firmer locking engage ment.

. In accordance with the provisions of the patentstatutes, I have described the principle of operation of my invention, together wlth the apparatus which I now consider to represent the best'embodiment thereof; but.

I desire to have it understood that the apparatus shown is only illustrative'and that the invention can'be carried out by other means.

What I claim as new and desire to secure by Letters Patent of the United States, is

1. A handle for controllers and the like having a hub. provided with a socket for reshaft,and as the spring continuously exerts a downward pressure upon the wedge, it

movable in said socket for locking the handle to the shaft, a spring secured to the handle adjacent to the hub and engaging the wedge to hold it in locking position, means for keeping said wedge 1n position when the handle is removed from the shaft, and means for readily disengaging said wedge from its locking position.

3. A. handle forcontrollers and the like having a hub provided With a socket for for normally holding said Wedge in looking receiving the shaft to be operated, a Wedge movable in said socket for locking the handle to the shaft and provided 'vvith means by which said Wedge may readily be disengaged from its locking position, andmeans position.

A. A handle for controllers andthe like having a hub provided With a socket for receiving the shaft to be operated, a Wedge movable in saidsocket for locking the handle to the shaft and provided with means by Which said Wedge may readily, be disen-v gaged from its locking position, and a spring for normallyholding said'vvedgein,

locking position 5. A handle for controllers and'the like having a hub provided with a socket for, receiving the shaft to be operated, a Wedge movable in saidsocket for locking the handle-to the shaft and provided With means cooperating With the controller shaft fon readily d sengaging said Wedge from its. locking posltlon, and a sprlng secured to the handle and engaging saidv Wedge for normally holding the same in looking position. v

6. A handle for controllers and the like having ahub provided With a socket, for receiving the shaft to be operated, a Wedge having a head for loosening it secured to the hub and slidably mounted inithe socket to lock the handle, to theshaft, a spring cured to the handle adjacent to the hub and engaging the Wedge to hold it in looking position.

8. A handle for controllers andthe like having a hub provided with a socket, for

receiving the controller shaft, and means forpreventing movement of saidhub rela tive to said shaft comprising a Wedge received between the shaft, and the Wall of the socket, a spring secured to said handle and engaging said Wedge and biased to force the Wedge home, andmeans for readily dis.- engaging saidwedge from its locking posie tion.

In WitnessWhereOf, I have hereuntoiset hand this 3rd day of December, 1913;

- FRANK E. CASE.

Witnesses:

ELIZABETH F. BEC BENJAMIN B; HULL.

Copies of this patent may be obtained for five cents each, by achiresosing the ,flommissionerof Patents, Washington, 1L 0.? 

